ROBERT R. FENICHEL, PH.D., M.D.
To the Editor:
Orlando and associates, in "Effect of Ethanol on Angina Pectoris" (Ann Intern Med 84:652-655, 1976), appear to believe that 100-proof vodka is 100% ethanol. It is not. One hundred proof was originally that concentration of ethanol that, when mixed with gunpowder and ignited, would burn rather than explode or fizzle. Proof is now defined more simply: X% ethanol is 2X proof.
Throughout their paper, Orlando and associates assert that their subjects consumed 2 or 5 ounces of ethanol on various occasions, and they further assert that these are quantities within the ordinary range of social drinking. While
ROBERT R. FENICHEL. Ethanol and Angina Pectoris. Ann Intern Med. 1976;85:394–395. doi: 10.7326/0003-4819-85-3-394
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Published: Ann Intern Med. 1976;85(3):394-395.
Cardiology, Coronary Heart Disease.
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